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Finding the Fourth Proportional to 196,249.60, 294,451.20 and 71,603.20

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Solution

The fourth proportional to 196,249.60, 294,451.20 and 71,603.20 is: 107,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,249.60 : 294,451.20 = 71,603.20 : x
  2. Step 2: Convert to fraction form
    196,249.60/294,451.20 = 71,603.20/x
  3. Step 3: Cross multiply
    196,249.60x = 294,451.20 × 71,603.20
  4. Step 4: Simplify right side
    196,249.60x = 21,083,648,163.84
  5. Step 5: Solve for x
    x = 21,083,648,163.84/196,249.60
  6. Step 6: Final answer
    x = 107,432.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.